Results 241 to 250 of about 39,712 (281)

Upper Devonian conodonts of northeastern European Russia

Paleontological Journal, 2017
The conodont succession in the Upper Devonian facially different sections of northeastern European Russia (Chernyshev Ridge, Subpolar and Polar Urals, Pai-Khoi) are studied. The sections are subdivided and correlated taking into account the global standards for stages.
N. S. Ovnatanova, L. I. Kononova, L. S. Kolesnik, Yu. A. Gatovsky   +3 more
openaire   +1 more source

Faunal differentiation in the Upper Devonian

Geological Society of America Bulletin, 1935
FOREWORD This is a preliminary compilation and analysis of Upper Devonian faunas, recognizedly incomplete. The compiler seeks the aid of others to ameliorate its errors and omissions so that a more perfect list may eventuate. Nevertheless, as it stands, it will serve to rectify widespread correlations of the American Upper Devonian strata, by ...
openaire   +1 more source

Upper Devonian rock stratigraphic nomenclature in Pennsylvania

American Journal of Science, 1961
The obvious inadequacies of the Upper Devonian terminology of Pennsylvania are the lack of a unifying rock term for the lithologic framework, as well as the lack of rock terms for the fundamental units within the framework. Recent work has made these inadequacies increasingly apparent. The name Susquehanna group is proposed to include all rocks between
J. T. Miller, R. R. Conlin
openaire   +1 more source

New Upper Devonian Rhynchonellids (Brachiopoda) from Transcaucasia

Paleontological Journal, 2018
Anew genus, Zezinia gen. nov., and two new species, Zezinia multicostata sp. nov. and Zaigunrostrum nakhichevanense sp. nov., are described from the Upper Devonian of Transcaucasia. The first genus is one of the last Frasnian representatives of the family Uncinulidae. The Famennian Z. nakhichevanense sp. nov.
openaire   +1 more source

Upper Devonian foraminifera from Western Australia

1961
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +1 more source

Spores and the middle-upper Devonian boundary

Review of Palaeobotany and Palynology, 1981
The stratigraphic levels most favoured for the Middle-Upper Devonian boundary fall approximately within the range of the ammonoid Pharciceras lunulicosta Zone, i.e. from the Middle varcus Subzone to the base of the Lower asymmetricus Zone of the conodont scale.
openaire   +1 more source

The Kaskaskia Sequence: Middle Devonian—Upper Mississippian

1987
Post-Tippecanoe emergence and concomitant erosion erased much of the older stratigraphic record on the craton, especially in the area of the Transcontinental Arch. Thus, earliest returning Kaskaskian seas spread over a deeply eroded topography and resulted in the deposition of carbonate strata in basinal areas while uplifts were still emergent.
William J. Frazier, David R. Schwimmer
openaire   +1 more source

III.—The Upper Devonian Fishes of Ohio

Geological Magazine, 1893
Under the true Carboniferous strata of Ohio, that is below the base of the Berea Grit, lies a mass of shale of varying colour many hundred feet in thickness. The uppermost fifty or sixty feet are often red or reddish, and have been separated with the name of the Bedford Shale.
openaire   +1 more source

Upper Devonian goniatite succession of Western Australia

American Journal of Science, 1941
"The Upper Devonian Goniatite beds of the Kimberley district, in the northern part of Western Australia, comprise equivalents of Oberdevonstufe, I, II, and III. The fauna of these beds is very similar to that of the strata in the European standard sections of these stages.
openaire   +1 more source

Upper Devonian Spirifers of the Catskill Delta

Nature, 1959
“Spirifer disjunctus” Its Evolution and Paleoecology in the Catskill Delta. By Hugo Greiner. (Peabody Museum of Natural History, Yale University, Bulletin No. 11.) Pp. iv + 75 + 13 plates. (New Haven, Conn.: Peabody Museum of Natural History, Yale University, 1957.) n.p.
openaire   +1 more source